"curling stone" meaning in English

{
  "forms": [
    {
      "form": "curling stones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "curling stone (plural curling stones)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1929, Sir Arthur Conan Doyle, When the World Screamed:",
          "text": "What was it happened? Neither Malone nor I was in a position to say, for both of us were swept off our feet as by a cyclone and swirled along the grass, revolving round and round like two curling stones upon an ice rink.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A circular polished granite stone with a handle affixed to the top, used in the game of curling."
      ],
      "id": "en-curling_stone-en-noun-3HvJI4TE",
      "links": [
        [
          "circular",
          "circular"
        ],
        [
          "polished",
          "polished"
        ],
        [
          "granite",
          "granite"
        ],
        [
          "handle",
          "handle"
        ],
        [
          "curling",
          "curling"
        ]
      ]
    }
  ],
  "word": "curling stone"
}

{
  "forms": [
    {
      "form": "curling stones",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "curling stone (plural curling stones)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1929, Sir Arthur Conan Doyle, When the World Screamed:",
          "text": "What was it happened? Neither Malone nor I was in a position to say, for both of us were swept off our feet as by a cyclone and swirled along the grass, revolving round and round like two curling stones upon an ice rink.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A circular polished granite stone with a handle affixed to the top, used in the game of curling."
      ],
      "links": [
        [
          "circular",
          "circular"
        ],
        [
          "polished",
          "polished"
        ],
        [
          "granite",
          "granite"
        ],
        [
          "handle",
          "handle"
        ],
        [
          "curling",
          "curling"
        ]
      ]
    }
  ],
  "word": "curling stone"
}